Medical Leadership Appointment Announcement

Shared on behalf of Dr. Adam Exley, Vice President, Medical and Academic Affairs


I am pleased to announce the appointment of Dr. Simon Sun to the role of Medical Director, Thoracic Surgery and Lung Screening Services.

Dr. Sun will provide strategic and clinical leadership to both the Thoracic Surgery and Lung Screening programs at Thunder Bay Regional Health Sciences Centre. As a collaborative leader, he will work closely with administrative and medical leaders across departments, including Oncology, Cardiology, and Diagnostic Services to drive high-quality, patient and family-centred care for individuals with thoracic conditions.

In this role, Dr. Sun will be responsible for providing expert medical oversight of Thoracic Surgical Services and the Lung Cancer Screening Program. He will lead operational and physician workforce planning in alignment with evolving clinical and community needs, while overseeing clinical performance indicators, quality metrics, and the professional development of advanced practice providers within the program. Dr. Sun will also strengthen interdisciplinary partnerships and contribute to the development of an Alternate Funding Plan (AFP) in collaboration with Medical Affairs. In addition, he will support innovation in thoracic care and advance education and research initiatives that align with the Hospital’s strategic goals.

Dr. Sun brings a strong track record of clinical excellence, interprofessional collaboration, and leadership experience. His vision and dedication to high-quality thoracic care will be instrumental in supporting our Hospital’s mission and regional priorities.

Please join us in congratulating Dr. Sun on his new appointment and in offering your support as he transitions into this important leadership role.

Dr. Adam Exley, CPFC (EM)

VP, Medical and Academic Affairs

September 29, 2025